Question

4. If a = -5, b = 4 cm and c= -2, verify that:
(i) a + (b + c) = (a + b) + C
(ii) a (b + c) = a × b + axc​

Answer 1

Step-by-step explanation:

a-) -5+(4-2)=(-5+4)+-2

-20-10=-1-2

-30=-3

= 10@ñs

Answer 2

Answer:

(i) a+(b+c) = (a+b)+c

-5+{4+(-2)} = (-5+4)+(-2)

-5+2 = -1-2

-3 = -3

hence proved

(ii) a(b+c) = a×b+a×c

-5{4+(-2)} = -5 × 4 + -5 × -2

-5×2 = -20+ 10

-10=-10 hence proved

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